Method for displaying the background image

Sets the method for displaying the desktop background image. Possible values: "none", "wallpaper", "centered", "scaled", "stretched"," zoom","spanned".

Method for displaying the desktop background:

0. none
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	none

1. wallpaper
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	wallpaper

2. centered
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	centered

3. scaled
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	scaled

4. stretched
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	stretched

5. zoom
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	zoom

6. spanned
   

   Registry Hive	HKEY_CURRENT_USER
   Registry Path	Software\BaseALT\Policies\gsettings
   Value Name	org.mate.background.picture-options
   Value Type	REG_SZ
   Value	spanned